Just got the car back from BLOWNBLUEZ06 Thursday after adding alky control dual nozzle running 100% meth, swapping to 3.6" pulley (from the 3.8" on A&A's V3 Si), gutting the cats (on LS7 manifolds) and switching over to speed density and eliminating the MAF. Went to a dyno day today, and she put down 672RWHP and 587TQ (up from 600RWHP and 525TQ). I'm very happy with the gains in power, but even more happy with Bret's tuning of the car. I'd always had some slight surgning issues at low speed (1st & 2nd gear) and surface street cruising (4th gear from about 40-50), it wasn't horrible but it was definitely noticeable. The car now has zero surging, and drives 100% like stock until you get on it. Can't speak highly enough of Bret and the job he did, he was very thorough on the install and on the tune.

The only downside is that now I've got a serious meth addiction!

Next up is to see how long the stock clutch lasts, once it goes I'll upgrade to something stronger and then go to a 3.4" pulley (not that I need it, but you know how that goes).

 

, he has tuned my car since it has been boosted and it will not go anywhere else as long as I own it... did you go to true street today??... I got there a little later in the day, just before 3, and by then they were winding down and I didn't get a chance to put mine on the dyno

 

Good results man. Meth is great.

 

Yes, there were a bunch of us from the Collin County group our there. I think most of us were probably gone before you got there. If you ever get the chance, you should swing by our weekly meet on Sunday evening at Brickhouse in Plano. We show up around 6:45 and go in for dinner at 7.

 

Awesome gains and numbers! Amazing numbers IMO with the factory cam, heads, and clutch!

 

Awesome numbers! I need your tuner to take a trip to my neck of the woods.......

 

bring the car to texas and I'm sure he would be more than happy to tune it... I have seen out of state cars in his garage quite a few times, he can also do remote tuning if you have hptuners

 

The car has always been on the strong side, dynoed right at 400RW stock, and then 600RW after the I tail blower install. I'm really amazed the factory (LS7) clutch is holding up to it, although I've never taken it to the drag strip. That's the main reason I went to the 3.6 pulley, I didn't think the clutch would last if I went to the 3.4.

He is definitely worth bringing the car here (or seeing if he'll go to you). My original installer was good, but Bret takes it to a whole different level. He's VERY meticulous and wants everything to be perfect. Unlike a lot of tuners, he also believes in lots of communication including text/email progress reports with pictures and details of where he's at in the process. My car ran good before I took it to him, and I could have just left it the way it was, but I had a couple of issues that bugged me. First, there had always been some surging at light throttle, it was worst at slow speeds (1st/2nd gear at 10-20MPH), still noticeable but not bad at 35-50, and mostly disappeared at highway speeds. I had taken it back and asked them to fix, but it didn't make any difference. Second, the tuner told me the A/F after getting the blower installed was good at 11:1, but when I got an updated Dyno done at another shop with wideband it was all over the place dropping below 10:1 between 4-5,000rpm. The car ran really strong, but after seeing the A/F curve bounce around like a pogo stick, it just made me uncomfortable. Finally, when I asked about meth, the first response was do a cam instead, and when I kept pushing about it, the response was yes they could do it, but they didn't want to break out the IAT and tune based on IAT. Anyway, all of this is what led me to Bret, and he was worth every penny as the car literally drives just like it came off the lot, except for way more power. ZERO issues with surge, and it's a beast when you floor it.

 

How much boost is it making now?

 

11 pounds

 

Jeez exact setup i will have !! If i can get near those numbers ill be more than happy!! S/D tunes(Map sensor) makes the car drive like OEM with still getting 30MPG!! and a lil some more when you mash the go fast pedal!!! do you know what is the stock GS 6SPD clutch?
im scared that mine wont make it on the dyno! I also have Z06 manifolds and catless 3' X-pipe through Stock 2.5 NPP, i have to say that combo sounds really N/A so i cant wait to hear the blower pushing that exhaust stream!!!! Congrats and enjoy meth!

 

All LS3s get the LS7 clutch. Had over a year on mine with 600RW with no issues, we'll see how long it lasts at the new level. My guess is that it may take it on the street, but I know it wouldn't last if I ever took it to the drag strip.

 

no DR though!! im glad to hear it will hold up till the clutch comes in!

 

Sounds just like my setup enjoy the fun! Some LS3 pumps even with the BAP don't like that setup under extended loads (mine didn't). I also found my stock clutch wouldn't fully disengage on hard shifting. It never slipped. Went twin disc and with an LS7 pump and never looked back.

Similar gains as me. Although I went Mustang dyno we have pretty much a similar setup.

Went from 574/532 to 640/588 adding methanol at ~11psi. One of these days I'll do a Dynojet to get the "higher numbers" The main thing with methanol is I found the car wouldn't pull as much timing and was more consistent in power delivery. In humid-ville USA it made all the difference.

EDIT: When I post my dyno graph I usually block out any identifiers of myself. I'm going to take a stab and say you're name's Evan Grimmett.

 

GS and possibly late model C6's have the Z06 pump. Which pump did yours have?

 

I usually do that, but I don't mind you guys know who I am.

That's what I've heard as well, since mines a 13, I'm pretty sure it's got the Z06 pump.

 

2010 LS3 3LT = LS3 pump...it was a long story but basically this was the issue I had (just read post #1 unless you're really bored ) Fuel pump heated up and got weaker in a nutshell. Eventually got a wideband and saw when it "died" it was going to 17+ AFR

https://www.corvetteforum.com/forums...power-why.html

 

I guess the fuel pump issue is hit or miss. I have been running a Z06 pump with a bap for around 4 years with no issues. The Bap comes on in boost only, and gets used plenty.

 

Four months after A&A S/C install, my LS3 fuel pump with BAP fell on its face at WOT causing detonation. I had a Z06 pump installed and all has been fine since. With a BAP, it is recommended to keep at least 1/4 tank of fuel when going into boost for cooling purposes.

 

Have you (or anyone) actually confirmed this? I've yet to see any real proof. The fact that all C6s use the same replacement pump part number muddies the waters.